The Om image is composed of 3 Sanskrit letters and signifies three sounds (a, u and m), which when mixed are regarded as a sacred sound. The om symbol is often observed at relatives shrines As well as in Hindu temples. This story can be shown because of the Ramayana https://www.tumblr.com/hanumanmandiradelaide/762919745320337408/the-hanuman-mandir-spiritual-and-cultural-center?source=share